Aibizia Julibrissin合欢树

July

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Albizia julibrissin， the Persian silk tree or pink silk tree， is a species of tree in thefamily Fabaceae， native to southwestern and eastern Asia. The Italian 1）noblemanFilippo degli Albizzi， introduced it to Europe in the mid-18th century. Albizia julibrissin isa deciduous tree with an open， flat-topped， spreading crown; it can grow 6-16 metrestall.

The tree is harvested from the wild， mainly for local 2）medicinal use and as asource food and wood. It is grown as a shade tree and soil conditioner， and is oftengrown as an ornamental tree because of its appealing fragrance， showy flowers andlow 3）maintenance requirement.

Mimosa is a tree of mainly temperate to subtropical regions， entering the tropic athigher elevations. Mature plants can prove to be hardy to about -20℃ in continentalregions， but in moister， 4）maritime areas are only hardy to about -10℃.

Young leaves can be cooked. It has an aromatic flavour. It is used as a potherb.Flowers can also be cooked and eaten as a vegetable. The dried leaves are a teasubstitute.

The flower heads are sedative and tonic. They are used internally in the treatmentof insomnia， irritability， breathlessness and poor memory. The flowers are harvestedas they open and are dried for later use. The stembark is anodyne， anthelmintic. It is used internally inthe treatment of insomnia， irritability. Externally， the stem bark is applied to injuries andswellings. A gummy extract obtained from the plant is used as a plaster for abscesses，boils etc and also as a retentive in fractures and sprains.

1） nobleman ['naublman] n.贵族

2）medicinal [ma'disinl] adj.医学的;药用的

3） maintenance ['meintanans]n.维修

4）maritine ['maeritaim] adj.海洋的

合欢树，也叫波斯合欢树或粉红色的丝绸树，是豆科家族中的一种，起源于亚洲西南部和东部地区。意大利贵族菲利普·阿布鲁在18世纪中叶将合欢树传入欧洲。合欢树是落叶树，带有开放的、平顶的、散布的树冠。树长可达6至16米。

合欢树是从野外采伐的，主要供当地药用，并用作食物和木材。它被用作遮荫树和土壤改良剂，由于其诱人的香气、艳丽的花朵和较低的维护要求而經常被用作观赏树。

合欢树是主要生长在温带至亚热带地区，在热带地区的高海拔地带也可见。成熟的合欢树在大陆地区其耐寒性约为-20℃，而在潮湿地区、海洋地区则仅可耐受约-10℃。

合欢树幼叶可煮熟吃，用作野菜，有着芳香的味道。花可煮熟，作为蔬菜食用。干树叶是茶叶的替代品。

合欢树花冠可用作补品，内服可用于治疗失眠、烦躁、呼吸困难和记忆力减退。花蕾在含苞待放时被采摘，并晒干以备用。合欢树的茎皮是止痛药、驱虫药等。内服可用于治疗失眠、易怒等，外用可用于伤口和肿胀。从植物中获得的树胶状提取物可用作脓肿、烫伤等的膏药，也可作为骨折和扭伤的止血剂。